Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/89253
| Title: | Stress-induced phase transformation in shape memory ceramic nanoparticles | Authors: | Raut, VS Glen, TS Rauch, HA Yu, HZ Boles, ST |
Issue Date: | 7-Dec-2019 | Source: | Journal of applied physics, 7 Dec. 2019, v. 126, no. 21, 215109, p. 1-7 | Abstract: | Thermal treatment was observed to gradually transform the morphology of Ce0.12Zr0.88O2 (CZ) powder: transitioning from having round edges, to exhibiting clear facets, to particle growth, as a function of increasing treatment temperature. The effect of the morphological changes in the powder on the extent of stress-induced phase transformation upon mechanical compression is reported. The physical changes in the average particle size and the residual levels of monoclinic content (MC) post thermal treatment between 300 °C and 1550 °C are in line with the expectations. However, the extent of transformation upon compression is found to greatly depend on the thermal history of the powder, and generally, post compression, MC can be split into two regimes. Powders heat-treated below ∼1200 °C comprise regime 1, where post compression, MC increases as the preceding thermal processing temperature is increased. The increase in MC is despite the decreasing residual levels of the monoclinic phase in the CZ powder, which is caused by the thermal treatment. For the case of annealing above ∼1200 °C (comprising regime 2), stress-induced transformation becomes exceedingly difficult and the extent of the transformation is significantly reduced. The vital role played by the particle shape alone can be leveraged in the development of new applications of shape memory ceramics. | Publisher: | AIP Publishing | Journal: | Journal of applied physics | ISSN: | 0021-8979 | EISSN: | 1089-7550 | DOI: | 10.1063/1.5118818 | Rights: | © 2019 Author(s). This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in V. S. Raut et al., J. Appl. Phys. 126, 215109 (2019) and may be found at https://doi.org/10.1063/1.5118818 |
| Appears in Collections: | Journal/Magazine Article |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 1.5118818.pdf | 1.45 MB | Adobe PDF | View/Open |
Access
View full-text via PolyU eLinks 
Page views
32
Last Week
2
2
Last month
Citations as of Jun 4, 2023
Downloads
30
Citations as of Jun 4, 2023
SCOPUSTM
Citations
5
Citations as of Jun 2, 2023
WEB OF SCIENCETM
Citations
4
Citations as of Jun 1, 2023
Google ScholarTM
Check
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.